Based on the user reviews of the Mega Man System app, here are three cons and pros in 15 words or less each: **Pros:** 1. Impressive graphics and sounds bring back nostalgic memories of classic Mega Man games. 2. Smooth controls and responsive gameplay make the experience enjoyable and engaging. 3. Large selection of levels and challenges keep the game fresh and exciting. **Cons:** 1. Lack of original story and setting can make the game feel repetitive and unoriginal. 2. Some users experience framerate issues and lag, disrupting the gaming experience. 3. Limited customization options for characters and gameplay may disappoint fans of series.